18399760

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1811}}^1$

素因数の和:1951

約数の個数: 40

約数和(自身を含む): 43140096

約数和(自身を除く): 24740336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 1811, 2032, 2540, 3622, 5080, 7244, 9055, 10160, 14488, 18110, 28976, 36220, 72440, 144880, 229997, 459994, 919988, 1149985, 1839976, 2299970, 3679952, 4599940, 9199880, 18399760]

約数ペア:

[(1, 18399760), (2, 9199880), (4, 4599940), (5, 3679952), (8, 2299970), (10, 1839976), (16, 1149985), (20, 919988), (40, 459994), (80, 229997), (127, 144880), (254, 72440), (508, 36220), (635, 28976), (1016, 18110), (1270, 14488), (1811, 10160), (2032, 9055), (2540, 7244), (3622, 5080)]